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ADVANCED INTERNAL MEDICINE, P.C.
NPI 1467709451
Internal Medicine in Great Neck, NY

Active since August 08, 2012CLIA 33D2068454 · Waiver
935 NORTHERN BLVD STE 105, GREAT NECK, NY 11021(516) 487-0070(516) 487-0072 Get Directions Write a Review

NPPES record last updated: November 28, 2018. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Nov 28, 2018, Jan 11, 2017 (2 updates tracked since 2017).

About Advanced Internal Medicine, P.c. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ADVANCED INTERNAL MEDICINE, P.C. (NPI 1467709451) is a healthcare organization registered as an internal medicine in Great Neck, New York and active in the NPI registry since August 2012. The organization holds a CLIA Waiver certificate valid through May 31, 2027 and lists Shahram Daniel Shamekh, President/ceo, as its authorized official.

NPPES Registry Identity

NPI1467709451
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameADVANCED INTERNAL MEDICINE, P.C.
Location Address935 NORTHERN BLVD STE 105Great Neck, NY 11021-5309
Mailing Address130 Gristmill LnGreat Neck, NY 11023-1839 · (516) 455-7017
Phone(516) 487-0070
Fax(516) 487-0072
Organization SubpartNo
Authorized OfficialShahram Daniel ShamekhPresident/ceo · (516) 455-7017
Enumeration DateAugust 8, 2012
Last NPPES UpdateNovember 28, 20182 updates tracked since enumeration
✔ NPI 1467709451 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in NY · 236142
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
935 NORTHERN BLVD STE 105, Great Neck, NY 11021
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Other Identifiers 1

Medicaid02708294NY

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Advanced Internal Medicine, P.c. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

2

Medicare enrollment records show 2 clinicians reassign Medicare billing to Advanced Internal Medicine, P.C., which bills Medicare for the services they deliver. Of these, 1 practice at this address. They are listed nearest first.

Clinicians, nearest first (2)

Shahram Shamekh, MD
Internal Medicine
NPI 1063468627
935 NORTHERN BLVD STE 105
Great Neck, NY 11021
(516) 487-0070
✔ PECOS✔ Accepts MedicareSame address
Shahram Hormozi, M.D.
Cardiovascular Disease (Cardiology)
NPI 1215916721
515 ROUTE 111 2ND FLOOR
Hauppauge, NY 11788
(631) 224-1819
✔ PECOS✔ Accepts Medicare27 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 33D2068454

Advanced Internal Medicine, PC · Great Neck, NY
Active · expires May 31, 2027
CLIA Number33D2068454
Laboratory TypePhysician Office
Certificate Effective DateJune 1, 2025
Certificate Expiration DateMay 31, 2027
Laboratory DirectorDr. Shahram D. Shamekh
Laboratory Phone(516) 487-0070
Laboratory LocationAdvanced Internal Medicine, PC935 Northern Boulevard, Suite 105, Great Neck, NY 11021
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Advanced Internal Medicine, P.C.'s NPI number?

The NPI number for Advanced Internal Medicine, P.C. is 1467709451. It was assigned to this organization in the NPPES registry on August 8, 2012.

Where is Advanced Internal Medicine, P.C. located?

Advanced Internal Medicine, P.C. is located at 935 Northern Blvd Ste 105, Great Neck, NY 11021. The listed phone number is (516) 487-0070.

What is Advanced Internal Medicine, P.C.'s specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Advanced Internal Medicine, P.C. enrolled in Medicare?

Yes. Advanced Internal Medicine, P.C. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Advanced Internal Medicine, P.C.?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians reassign their Medicare billing to Advanced Internal Medicine, P.C., in Cardiovascular Disease (Cardiology) and Internal Medicine. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Of these, 1 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Advanced Internal Medicine, P.C. hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 33D2068454) is associated with this NPI, valid through May 31, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Advanced Internal Medicine, P.C. was last updated on November 28, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.